Centering55/45 or better on the front. 60/40 or better on the back.
CornersNear-perfect corners with only the slightest signs of wear under very close inspection. Corners are sharp and clean with no visible imperfections.
EdgesPerfect edges under normal inspection. Any tiny imperfections are barely visible under close magnification. Edges are sharp and clean.
SurfaceNear-perfect surface with only the tiniest imperfections visible under close inspection. Surface appears clean and free of noticeable marks.